Hair-waving unit



Feb. 8, 1949. F. M. WINKEL 2,461,101

HAIR-WAVING UNIT Original Fild March 12, 1937 v 1. M. Mzzisel Patented Feb. 8, 1949 HAIR-WAVING UNIT Fred M. Winkel, Phillipsburg, Pa., assignor to:

Ralph L. Evans, New York, and Everett G. McDonough, Yonkers, N. Y.

Application March 12, 1937, Serial No. 130,585

' Renewed August 7, 1939 This invention relates to a device for use in producing permanent waves in the hair, it being of that type wherein a chemical reaction is set up for the purpose of supplying the required heat and moisture.

Heretofore, in devices of this character, it has been the practice to utilize an envelope of metal foil in which has been encased the chemical bearing sachet utilized for efiecting the desired reaction. The sachet has been arranged usually in a paper holder which has been easily broken while being handled. Furthermore an excessive amount of metal foil has been required in order to completely house the container of sachet and this has added materially to the cost of production. A further objection has been found in the number of parts required in the production of a unit.

The present invention has for its object the production of a hair waving unit which can be manufactured at lower cost than others now in use but which will be equally as eflicient.

With the foregoing and other objects in view which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts hereinafter more fully described and pointed out in the claims, it being understood that changes may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.

In the accompanying drawing the preferred form of the invention has been shown.

In said drawing Figure 1 is a plan view of the hair waving unit constituting the present invention.

Figure 2 is an enlarged section therethrough.

Figure 3 is an enlarged section showing a hair winding implement with hair wrapped therearound and the unit applied.

Referring to the figures by characters of reference l designates a sheet of material such as paperboard of an absorbent nature. This sheet is impregnated with ferric chloride, stannic' chloride, or any other chemical which, when moistened, will attack metal and generate heat as a result of the ensuing reaction,

To one surface of the sheet I is afiixed a layer of metal foil such as aluminum, tin, or the like, the edge of the foil 2 being extended preferably beyond the corresponding edges of the sheet I. The foil 2 is, in turn, affixed to a protecting coating of paper, shown at 3 which likewise extends beyond the edges of sheet I and also of foil 2.

Under normal conditions the sheet I is stiff and thus can be easily handled. When it is desired to 4.Claims. (Cl. 13.2-36.2)

use the'unit the hair His twisted about a winding implement of the usual type, indicated at I and secured as ordinarily. The hair waving unit con stituting the present invention is then dipped in water so as to soften sheet i. The paper 3 is applied to the hair and the entire unit wrapped tightly about the hair, forming one or more convolutions. The unit is then fastened by tying or otherwise securing it. When the chemical saturated sheet I is moistened, a reaction will be set up promptly between the metal foil and the chemical with the result that heat will be generated sufficiently to permanently wave the tress to which the unit is applied.

It is to be understood that various metal foils can be used in addition to those mentioned, among these being copper, zinc, etc. The chemicals employed can also be varied in order to properly react with the metal foil used. The foil is applied to a protective coating, such as a sheet of paper, only when it is very thin. The coating is placed next to the tress so that, as the foil disintegrates, the resultant articles will not get into the hair but will remain adhering to the paper when the unit is removed. Should a heavy foil, which will not disintegrate, be used the coating need not be employed. A further important feature is found in the use of a chemical saturated absorbent sheet which is normally stiff so as to afford at all times a holder and protector for the metal foil while being handled. As the sheet i is impregnated with the chemical, no loose finely divided material, such as a sachet, need be used and waste of material due to accidental breakage of a package containing sachet, is avoided.

What is claimed is:

1. A hair waving unit including a normally stiff and dry absorbent sheet havingan exposed surface, metal applied to the opposed surface, said sheet being impregnated with a chemical which, in moist condition, will attack the metal to react exothermically, and a protective coating applied to that surface of the metal remote from the absorbent sheet.

2. A hair waving unit including a normally stiff and dry absorbent sheet having an exposed surface, metal foil applied to the opposiw surface, said sheet being impregnated with a chemical which, in moist condition, will attack the foil to react exothermically, and a protective coating applied to the foil for contact with the hair being treated. I

3. A hair waving unit including a normally stiff and dry absorbent sheet having one face exposed, a metal foil constituting a covering for the other face, said sheet being saturated with a chemical which, in moist condition, will attack the foil to react exothermically, and a protective coating applied to the foil for contact with the hair being treated. 1

4. A hair waving unit including a normally stiff and dry absorbent sheet,"meta1 aflixed to one surf ace of saidsheetg aid sheet beirig "impregnated with a chemical which, in solution, will attack the metal to react exothermocally, and a protective coating one surface of which is afiiged to the surface of said metal remote from said atsorbent sheet, to constitute apermanent laminated structure. e FRED M. WINKEL.

REFERENCES CITED The following references are of record in the of this patent:

France July 22. 1935 

